钛管titanium tube 执行标准:ASTM B337 ,ASTM B338 ,ASTM B338 B861 无缝钛管: 直径:O.D 6-108mm 壁厚:0.5-8mm 长度:长15000mm 焊接钛管: 直径:O.D100- 610mm 壁厚:2-6mm